Inexperienced , immature , or untried .

无经验的、不成熟的或未经试验的。

The impossible is often the untried .

不可能的事往往是未经尝试的事。

The mechanisms for organising the sale or administration of an insolvent audit firm are uncertain and untried .

组织出售或管理已破产的审计事务所的机制并不确定，并且是未经检验的。

But rival technologies have improved . Potential foreign buyers of the company are waiting to see whether aecl 's latest , previously untried design wins a competition this summer to build a new reactor for ontario 's provincial government .

但竞争对手的技术提高了，该公司潜在的海外客户都在观望，看看今年夏天它最新的、事先未经试验的设计能否在竞争中胜出，为安大略省政府建造一个新的反应堆。

Yet finding such companies requires painstaking and time-consuming research and often requires betting on untried managers .

不过要找出这种企业需要进行艰苦而耗时的调研，而且常常需要押注于未经验证的管理人。